WA CDL DOUBLES TRIPLES PRACTICE TEST
11.
Which of these statements about brakes is true?
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The lighter the vehicle, the more heat the brakes absorb to stop it.
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Brake fade does not result from excessive heat.
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None of the above.
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12.
If there is a fire and you are not sure what to use to put it out, you should:
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use water.
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use a fire extinguisher.
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wait for firefighters.
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13.
If during vehicle inspection a tire is too hot to touch, you should:
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let air out.
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immediately decrease air pressure.
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remain stopped until the tire cools off.
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14.
You as a driver should always:
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make emergency plans when you see a hazard.
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reduce your following distance.
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stay in your lane.
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15.
The last trailer of triples is ______ as likely to turn over as a five-axle tractor.
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twice
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3.5 times
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4 times
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16.
What factors can cause brakes to fade?
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Slippery surfaces and shaded areas.
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Excessive heat and brakes out of adjustment.
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Dirt roads and in unpaved yards.
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17.
If you are being tailgated, you should:
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make quick changes.
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open up room in front of you.
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increase your speed very gradually.
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18.
You have two tie-downs on a 15 foot load. How many more tie-downs do you need to secure cargo and keep it from shifting or falling?
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One
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Two
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None
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19.
Texting while operating a commercial motor vehicle is:
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acceptable if you are contacting your dispacther.
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illegal.
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acceptable if you are contacting your supervisor.
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20.
Air storage tanks:
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hold compressed air for the brakes.
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use parts of the service brake systems to stop the vehicle in a brake system failure.
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pump air into the air storage tanks.
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